I have both, in fact I have a bunch of M70s, and they are similiar but still different.

The Kimber M84L is a much smaller action and thus a lighter gun. The trigger on the Kimber is very nice and can be adjusted easilly and the stock look BLOWS the M70s out of the water.

The M70 is a much larger action and build like a tank, although I doubt the Kimber has any weakness in that respect, The trigger is nice but not great like the old M70s trigger was. I like the Featherweight stock.

Bottom line is pick the one you prefer and you'll be happy.